Type of film

Thickness (micrometer)

Glycerol concentration (gram per gram of gelatin)

Sorbitol concentration (gram per gram of gelatin)

Water vapor permeability × 10 (gram/millimeter per kilopascal/hour/square meter

Bovine gelatin with high Bloom values containing clay nanoparticles

0.00

0.10

0.15

0.20

0.25

0.30

0.00

1.89 a

1.83 a

1.51 b

1.28

1.30 c

1.78 a

0.00

0.10

0.15

0.20

0.25

0.30

1.89 a

1.40 b

1.32 b

0.86 c

0.65 c

0.89 c

Bovine gelatin with low Bloom values containing clay nanoparticles

0.00

0.15

0.20

0.25

0.30

0.00

1.42 a

1.22 b

1.10 b

1.05 b

1.21 b

1.70 a

0.00

0.10

0.15

0.20

0.25

0.30

1.42 a

1.03 b

1.00 b

0.45 c

0.41 c

0.34 c

Fish skin gelatin containing clay nanoparticles

0.00

0.10

0.15

0.20

0.25

0.30

0.00

1.86 a

0.76 c

0.52 d

0.85 c

1.32 b

1.29b

0.00

0.10

0.15

0.20

0.25

0.30

1.86 a

0.92 b

0.57 c

0.62 c

0.12 d

0.20 d